Supercharge Your Innovation With Domain-Expert AI Agents!

VCV (volume-controlled ventilation) gas leakage compensating method

A technology of air leakage and compensation, which is applied in the field of ventilators, can solve the problems of gas leakage, gas reduction, and failure to reach tidal volume, etc., and achieve the effect of stable platform pressure and constant gas volume

Active Publication Date: 2016-09-28
HEDY MEDICAL DEVICE CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of air leakage in the pipeline, on the one hand, the gas entering the lungs will decrease and the set tidal volume cannot be reached; further reduce

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • VCV (volume-controlled ventilation) gas leakage compensating method
  • VCV (volume-controlled ventilation) gas leakage compensating method
  • VCV (volume-controlled ventilation) gas leakage compensating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] figure 2 The air leakage compensation method of the present invention specifically includes the following steps:

[0037] Step 1, at the beginning of each inhalation, calculate the leakage volume VTleak of the entire breathing cycle system according to the inspiratory tidal volume VTi and the expiratory tidal volume VTe detected by the sensor in the previous cycle:

[0038] VTleak=VTi-VTe

[0039] Step 2: Estimate the air leakage volume VTdeliver_leak during the air delivery phase according to the air delivery time and the proportion of the airway pressure in the air delivery phase in the entire breathing cycle. A feasible implementation example of evaluating VTdeliver_leak is:

[0040]

[0041] Pdeliver_mean is the average airway pressure during the delivery phase; Ti is the inspiratory time, and Te is the expiratory time.

[0042] Tdel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a VCV (volume-controlled ventilation) gas leakage compensating method. The method comprises the following steps: in a VCV plateau stage, providing a compensating flow by virtue of a gas suction valve, so that plateau pressure is kept stable; by virtue of a gas leakage assessment method, assessing a gas leakage amount of a system under the plateau pressure, and compensating the gas leakage amount by virtue of the gas suction valve, so that the plateau pressure is kept stable; and by virtue of a pressure control method, automatically regulating the compensating flow by virtue of a pressure controller, so that the plateau pressure is stabilized. According to the compensating method disclosed by the invention, gas entering lungs is a preset tidal volume through conducting compensating within a gas supply time; and in a plateau time, the gas suction valve, instead of being closed, is in charge of keeping the plateau pressure stable in accordance with a leakage flow, so that a gas volume in the lungs is kept constant.

Description

technical field [0001] The invention specifically relates to a method for compensating VCV air leakage, and belongs to the technical fields of ventilators and anesthesia machines. Background technique [0002] Volume Controlled Ventilation (VCV) is an important ventilation method for ventilators and anesthesia machines. VCV ventilates the patient through the set flow rate (Fset), inspiratory time (Ti) and tidal volume (VTset) to ensure that the patient obtains the set tidal volume. After the VCV reaches the set tidal volume, the inspiratory valve and the exhalation valve will be closed, and the remaining inspiratory time is the plateau time. During the plateau time, the pressure of the gas in the lungs and the ventilator circuit system reaches equilibrium, which is called the plateau pressure. During the plateau pressure time, the gas in the lungs of the patient is fully diffused and diffused, the hemoglobin is fully oxygenated, the carbon dioxide diffuses into the alveoli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00A61M16/01
CPCA61M16/00A61M16/01A61M2205/3331
Inventor 钟达雄孟亚彬刘铁柱黄华平
Owner HEDY MEDICAL DEVICE CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com